CN219459011U - A photovoltaic inverter housing with high heat dissipation - Google Patents

Abstract

The utility model discloses a photovoltaic inverter shell with high-efficiency heat dissipation, which comprises a shell, wherein a shell cover is arranged on one side of an opening of the shell, a photovoltaic inverter main body is arranged on one side, close to the shell cover, of the inside of the shell, an air duct is inserted into the central position, far away from the shell cover, of the shell, a rotating rod is vertically and symmetrically inserted into one end, located inside the shell, of the air duct, air deflectors are sleeved on the outer peripheral surfaces, located between the inner walls of the air ducts, of the rotating rod, a heat dissipation assembly for cooling the photovoltaic inverter main body is arranged on one side, far away from the shell, of the air duct, and a reciprocating driving assembly for controlling the rotation of the air deflectors is arranged at the top of the rotating rod. According to the utility model, the heat radiation assembly is matched with the reciprocating driving assembly, so that the air deflector can be driven to rotate simultaneously when the through-flow fan is driven to radiate heat, and cold air sucked by the through-flow fan is guided in multiple angles when the air deflector rotates, thereby changing the wind direction, improving the heat radiation area, improving the heat radiation efficiency and greatly reducing the production cost.

Description

A photovoltaic inverter housing with high heat dissipation

technical field

The utility model relates to the technical field of photovoltaic inverters, in particular to a photovoltaic inverter casing with high heat dissipation.

Background technique

A photovoltaic inverter is an inverter that converts the variable direct current voltage generated by photovoltaic (PV) solar panels into mains frequency alternating current (AC), which can be fed back to the commercial transmission system or used in an off-grid grid . Photovoltaic inverter is one of the important balance of system (BOS) in photovoltaic array system, which can be used with general AC power supply equipment. Solar inverters have special functions for photovoltaic arrays, such as maximum power point tracking and island effect protection.

During the use of the photovoltaic inverter, due to the continuous input and output of current, the photovoltaic inverter will generate a large amount of heat, so it is necessary to dissipate heat from the photovoltaic inverter in time to avoid high temperature on the In the case of conventional inverters, fans will be used to dissipate heat. This method is simple to use, low in cost and can obtain good heat dissipation effects. However, for some larger photovoltaic inverters For inverters, using fans to dissipate heat can only dissipate heat from a part of the inverter area, and adding fans to dissipate heat in a large area will affect the internal space of the housing, and the manufacturing cost will also increase accordingly. Therefore, it is necessary to To increase the effective heat dissipation area without adding heat dissipation components, we propose a photovoltaic inverter housing with high heat dissipation.

Utility model content

The purpose of the utility model is to solve the shortcomings in the prior art, and propose a photovoltaic inverter casing with high heat dissipation.

In order to achieve the above object, the utility model adopts the following technical solutions:

A high-efficiency heat dissipation photovoltaic inverter housing, including a housing, a housing cover is provided on one side of the opening of the housing, and a photovoltaic inverter main body is provided on the side of the housing close to the housing cover. An air duct is inserted in the center of the side away from the shell cover, and a rotating rod is inserted vertically and symmetrically at one end of the air duct located inside the housing, and the outer peripheral surface of the rotating rod is located between the inner walls of the air duct. There is an air deflector, the side of the air channel away from the casing is provided with a heat dissipation assembly for cooling the main body of the photovoltaic inverter, and the top of the rotating rod is provided with a reciprocating drive assembly for controlling the rotation of the air deflector.

Preferably, the heat dissipation assembly includes a rotating shaft rotatably inserted in the middle of the air duct away from the top of one end of the housing, the outer peripheral surface of the rotating shaft is located inside the air duct, and a cross-flow fan is sleeved, and the top of the rotating shaft is coaxially provided with a motor , the output shaft of the motor is coaxially connected with the top of the rotating shaft.

Preferably, the reciprocating drive assembly includes gears that are sheathed on the top of the rotating rod, and the same gear rack is laterally engaged with the gear near the side of the cross-flow fan, and the rack is slidably connected to the top of the air duct at the inner position of the casing, A connection block is provided at the center of the rack near the side of the cross-flow fan, a reciprocating lead screw is inserted transversely at the center of the connection block, and mounting seats are provided for symmetrical rotation at both ends of the reciprocating lead screw. The mounting seat is fixed on the top of the same air channel at the inner position of the shell, the connecting block is slidably connected to the top of the air channel along the axial direction of the reciprocating screw, and one end of the reciprocating screw is provided with a joint transmission for controlling the rotation of the reciprocating screw components.

Further, the combined transmission assembly includes a worm wheel sheathed on one end of the reciprocating lead screw, the side of the worm wheel close to the motor is vertically engaged with a worm, the bottom of the worm is rotatably connected to the top of the air duct, and the top of the worm is sheathed with a pulley, The combined transmission assembly also includes a pulley sleeved on the outer peripheral surface of the rotating shaft near the position between the motor and the air duct, and the same transmission belt is sleeved on the pulley.

Still further, a plurality of air outlet holes are opened on the top of the housing, and the air outlet holes communicate with the inside of the housing.

Preferably, a filter screen is inserted into the inner wall of the air duct away from the end of the casing.

The beneficial effects of the utility model are:

1. Through the use of the set heat dissipation component and the reciprocating drive component, the air guide plate can be driven to rotate simultaneously when the cross-flow fan is driven for heat dissipation. The wind direction can be changed, and the heat dissipation area can be increased at the same time, so as to reduce the dead angle of heat dissipation and improve the heat dissipation efficiency. At the same time, the heat dissipation and cooling can be carried out without adding fans, which greatly reduces the production cost;

2. Through the set air outlet, the hot air after heat exchange can be quickly discharged through the air outlet in the state of floating up, thereby greatly reducing the heat accumulation inside the shell and effectively improving the heat dissipation effect.

The above description is only an overview of the technical solutions of the present utility model. In order to better understand the technical means of the present utility model, it can be implemented according to the contents of the description, and in order to make the above-mentioned and other purposes, features and advantages of the present utility model better It is obvious and easy to understand. The preferred embodiments are specifically cited below, together with the accompanying drawings, and detailed descriptions are as follows.

Description of drawings

Fig. 1 is a three-dimensional structural schematic diagram of a high-efficiency heat dissipation photovoltaic inverter housing proposed by the utility model;

Fig. 2 is a structural schematic diagram of a heat dissipation assembly of a high-efficiency heat dissipation photovoltaic inverter housing proposed by the utility model;

Fig. 3 is a structural schematic diagram of a wind deflector of a high-efficiency heat-dissipating photovoltaic inverter housing proposed by the utility model;

Fig. 4 is a structural schematic diagram of a reciprocating drive assembly of a high-efficiency heat dissipation photovoltaic inverter housing proposed by the utility model;

Fig. 5 is a structural schematic diagram of a joint transmission assembly of a high-efficiency heat-dissipating photovoltaic inverter housing proposed by the utility model;

Fig. 6 is a partial enlarged structural schematic diagram of A of Fig. 4 of a photovoltaic inverter housing with high heat dissipation proposed by the utility model;

FIG. 7 is a schematic diagram of a partially enlarged structure at B in FIG. 5 of a high-efficiency heat-dissipating photovoltaic inverter housing proposed by the present invention.

In the figure: 1. Shell; 2. Shell cover; 3. Photovoltaic inverter main body; 4. Air outlet; 5. Air duct; 6. Rotating shaft; 7. Cross-flow fan; 8. Filter screen; 10, air guide plate; 11, rotating rod; 12, gear; 13, rack; 14, connecting block; 15, reciprocating screw; 16, mounting seat; 17, worm wheel; 18, worm; 19, pulley; Transmission belt.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example.

Embodiment 1, referring to Fig. 1 to Fig. 7, a photovoltaic inverter housing with high efficiency heat dissipation, including a housing 1, a housing cover 2 is provided on the opening side of the housing 1, and the inside of the housing 1 is close to the side of the housing cover 2 There is a photovoltaic inverter main body 3, and an air duct 5 is inserted in the center of the housing 1 away from the shell cover 2. The air duct 5 is located inside the housing 1 and rotates vertically and symmetrically at one end. A rotating rod 11 is inserted. 11 The outer peripheral surface between the inner walls of the air duct 5 is provided with an air deflector 10, the side of the air duct 5 away from the housing 1 is provided with a heat dissipation assembly for cooling the main body 3 of the photovoltaic inverter, and the top of the rotating rod 11 is provided There is a reciprocating drive assembly for controlling the rotation of the wind deflector 10 .

In this embodiment, the heat dissipation assembly includes a rotating shaft 6 that is rotatably inserted in the middle of the top end of the air duct 5 away from the housing 1. The outer peripheral surface of the rotating shaft 6 is located at the inner position of the air duct 5. A motor 9 is coaxially provided, and the output shaft of the motor 9 is coaxially connected with the top of the rotating shaft 6. The reciprocating drive assembly includes a gear 12 that is sleeved on the top of the rotating rod 11. The gear 12 is laterally meshed with the same rack on the side close to the cross-flow fan 7. 13. The rack 13 is slidably connected to the top of the air duct 5 and is located inside the housing 1. A connecting block 14 is provided at the center of the side of the rack 13 close to the cross-flow fan 7, and a reciprocating Lead screw 15, the two ends of the reciprocating lead screw 15 are symmetrically rotated and provided with mounting bases 16, the mounting bases 16 are fixed on the top of the same air duct 5 at the inner position of the housing 1, and the connecting block 14 is slidably connected along the axial direction of the reciprocating lead screw 15 At the top of the air duct 5, one end of the reciprocating screw 15 is provided with a combined transmission assembly for controlling the rotation of the reciprocating screw 15. The combined transmission assembly includes a worm wheel 17 sleeved on one end of the reciprocating screw 15, and the worm wheel 17 is vertically adjacent to the side of the motor 9. The worm 18 is meshed, the bottom of the worm 18 is rotatably connected to the top of the air duct 5, the top of the worm 18 is covered with a pulley 19, and the combined transmission assembly also includes a pulley set on the outer peripheral surface of the rotating shaft 6 near the position between the motor 9 and the air duct 5 19. The pulley 19 is set with the same transmission belt 20. The top of the housing 1 is provided with a plurality of air outlets 4. The air outlets 4 communicate with the inside of the housing 1. The air duct 5 is inserted with a filter 8 on the inner wall of the end away from the housing 1. .

The working principle of this embodiment: when in use, start the motor 9, the output shaft of the motor 9 drives the rotating shaft 6 to rotate, and when the rotating shaft 6 rotates, it drives the cross-flow fan 7 to rotate, and when the cross-flow fan 7 rotates, the external cold air passes through the filter screen 8 After being filtered, it is sucked into the air duct 5 and blows the cold air to the main body of the photovoltaic inverter 3 to dissipate heat. After heat exchange, the air passes through the air outlet 4 on the top and is discharged from the inside of the housing. When dissipating heat, in order to increase the heat dissipation area, Reduce the heat dissipation dead angle, when the rotating shaft 6 rotates, the worm 18 is driven to rotate by the cooperation of the pulley 19 and the transmission belt 20, and the reciprocating screw 15 is driven to rotate by the cooperation of the worm wheel 17 and the mounting seat 16 when the worm 18 rotates, and the reciprocating screw 15 rotates At the same time, under the action of the connecting block 14, the tooth bar 13 is driven to reciprocate and slide horizontally along the connection direction with the top of the air duct 5. When the tooth bar 13 slides, the rotating rod 11 is driven to rotate synchronously under the action of the gear 12. When the rotating rod 11 rotates Drive the wind deflector 10 to rotate at the same time. When the wind deflector 10 rotates, the cold air sucked by the cross-flow fan 7 is guided at multiple angles, so that the wind direction can be changed, and the heat dissipation area can be increased at the same time, thereby reducing the dead angle of heat dissipation and improving the heat dissipation efficiency. Heat dissipation and cooling can be performed without adding fans, which greatly reduces production costs.

The above is only a preferred embodiment of the utility model, but the scope of protection of the utility model is not limited thereto. The equivalent replacement or change of the new technical solution and the concept of the utility model shall be covered by the protection scope of the utility model.

Claims (6)

1. The utility model provides a high-efficient radiating photovoltaic inverter casing, includes casing (1), its characterized in that, casing (1) opening one side is equipped with cap (2), casing (1) inside is close to cap (2) one side and is equipped with photovoltaic inverter main part (3), casing (1) are kept away from cap (2) one side central point puts department and are inserted and are equipped with wind channel (5), wind channel (5) are located the vertical symmetry rotation of inside one end of casing (1) and insert and be equipped with bull stick (11), bull stick (11) are located the equal cover in position department outer peripheral face between wind channel (5) inner wall and are equipped with aviation baffle (10), wind channel (5) are kept away from casing (1) one side and are equipped with the cooling module that is used for cooling for photovoltaic inverter main part (3), bull stick (11) top is equipped with and is used for controlling the rotatory reciprocal drive assembly of aviation baffle (10).

2. The photovoltaic inverter housing with efficient heat dissipation according to claim 1, wherein the heat dissipation assembly comprises a rotating shaft (6) rotatably inserted in the middle position of one end top of the air duct (5) far away from the housing (1), a through-flow fan (7) is sleeved on the outer peripheral surface of the rotating shaft (6) at the inner position of the air duct (5), a motor (9) is coaxially arranged at the top of the rotating shaft (6), and an output shaft of the motor (9) is coaxially connected with the top of the rotating shaft (6).

3. The photovoltaic inverter housing with efficient heat dissipation according to claim 2, wherein the reciprocating drive assembly comprises gears (12) sleeved at the top of the rotating rod (11), the gears (12) are transversely meshed with the same rack (13) close to one side of the through-flow fan (7), the rack (13) is slidably connected to the top of the air duct (5) at the inner position of the housing (1), a connecting block (14) is arranged at the central position of one side of the rack (13) close to the through-flow fan (7), a reciprocating screw (15) is transversely inserted at the central position of the connecting block (14), mounting seats (16) are symmetrically sleeved at two ends of the reciprocating screw (15), the mounting seats (16) are fixedly arranged at the top of the inner position of the housing (1), the connecting block (14) is axially slidably connected to the top of the air duct (5) along the reciprocating screw (15), and one end of the reciprocating screw (15) is provided with a combined drive assembly for controlling the rotation of the reciprocating screw (15).

4. The photovoltaic inverter housing with efficient heat dissipation according to claim 3, wherein the combined transmission assembly comprises a worm wheel (17) sleeved at one end of the reciprocating screw rod (15), a worm (18) is vertically meshed at one side of the worm wheel (17) close to the motor (9), the bottom of the worm (18) is rotationally connected to the top of the air duct (5), a belt pulley (19) is sleeved at the top of the worm (18), the combined transmission assembly further comprises a belt pulley (19) sleeved at the outer peripheral surface of the rotating shaft (6) close to the position between the motor (9) and the air duct (5), and the belt pulley (19) is sleeved with the same transmission belt (20).

5. The photovoltaic inverter housing with high heat dissipation according to claim 4, wherein a plurality of air outlet holes (4) are formed in the top of the housing (1), and the air outlet holes (4) are communicated with the inside of the housing (1).

6. The photovoltaic inverter housing with high heat dissipation according to claim 5, wherein a filter screen (8) is inserted into an inner wall of one end of the air duct (5) far away from the housing (1).